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A Survey of Schedulability Analysis Techniques for Rate-Dependent Tasks

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JournalJournal of Systems and Software
DateAccepted/In press - 20 Dec 2017
DateE-pub ahead of print (current) - 22 Dec 2017
Volume138
Number of pages8
Pages (from-to)100-107
Early online date22/12/17
Original languageEnglish

Abstract

In automotive embedded real-time systems, such as the engine control unit, there are tasks that are activated whenever the crankshaft arrives at a specific angular position. As a consequence the frequency of activation changes with the crankshaft’s angular speed (i.e., engine rpm). Additionally, execution times and deadlines may also depend on angular speeds and positions. This paper provides a survey on schedulability analysis techniques for tasks with this rate-dependent behaviour. It covers different task-models and analysis methods for both fixed priority and earliest deadline first scheduling. A taxonomy of the different analysis methods, classifying them according to the assumptions made and the precision of the analysis, is provided at the end of the paper

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© 2017, Elsevier Inc. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.

    Research areas

  • Real-time analysis, Schedulability test, Automotive, Engine control unit, Rate-dependent, Adaptive variable-Rate

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